CN111957674B - Particle catcher and GIS/cylinder structure for GIL - Google Patents
Particle catcher and GIS/cylinder structure for GIL Download PDFInfo
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- CN111957674B CN111957674B CN202010575321.XA CN202010575321A CN111957674B CN 111957674 B CN111957674 B CN 111957674B CN 202010575321 A CN202010575321 A CN 202010575321A CN 111957674 B CN111957674 B CN 111957674B
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- 239000002245 particle Substances 0.000 title claims abstract description 68
- 239000002923 metal particle Substances 0.000 claims abstract description 50
- 238000010276 construction Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
Abstract
The invention relates to a particle catcher and a tubular structure for a GIS/GIL. A particle trap, comprising: the trap cover plate is provided with a cover plate connecting structure and is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body through the cover plate connecting structure; the trap grid plate is detachably connected to the trap cover plate so as to form an equipotential region between the trap grid plate and the trap cover plate, and grid holes are distributed in the trap grid plate and are used for metal particles to penetrate through so as to enable the metal particles to enter the equipotential region. After the trap cover plate is fixedly connected to the corresponding cylinder, under the action of alternating-current high voltage, metal particles in the cylinder move under the action of an electric field and finally pass through the grid holes to enter an equipotential region, so that the metal particles are not influenced by the electric field any more, the metal particles stop moving, and the metal particles are captured; moreover, the trap cover plate and the trap grid plate are both of plate-shaped structures, so that the structure of the particle trap is simplified.
Description
Technical Field
The invention relates to a particle catcher and a tubular structure for a GIS/GIL.
Background
GIS products generally utilize SF6Gas insulation, and metal particles are inevitably generated inside the GIS, and the reasons for the generation are: metal particle residue produced in the assembling process, metal particle produced by abrasion of the moving contact in the operation process, metal particle produced by abrasion of the conducting rod caused by expansion with heat and contraction with cold and the like. Because the metal particles can move violently under the action of alternating-current high voltage, the insulation performance of the GIS is reduced, and thus, a discharge accident is caused.
Chinese patent application publication No. CN110883016A discloses a GIL device, which comprises a cylinder, wherein a particle trap is arranged in the cylinder, the particle trap is a cylindrical structure arranged coaxially with the cylinder, and a space is arranged between the particle trap and the inner wall of the cylinder to form a shielding region for collecting particles.
Because the particle catcher is arranged in the cylinder, the particle catcher is inconvenient to disassemble and assemble, and the caught metal particles are positioned on the inner wall of the cylinder, so that the metal particles are inconvenient to clean, and the catching effect is influenced after the particle catcher is used for a long time.
Disclosure of Invention
The invention aims to provide a particle catcher, which aims to solve the technical problems that the particle catcher in the prior art is positioned in a cylinder body, so that the particle catcher is inconvenient to assemble and disassemble and metal particles are inconvenient to clean; the invention also aims to provide a cylinder structure for the GIS/GIL, so as to solve the technical problems that the particle catcher in the prior art is positioned in the cylinder, and the disassembly and the assembly of the particle catcher and the cleaning of metal particles are inconvenient.
In order to achieve the above purpose, the technical scheme of the particle catcher of the invention is as follows:
a particle trap, comprising:
the trap cover plate is provided with a cover plate connecting structure and is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body through the cover plate connecting structure;
the trap grid plate is detachably connected to the trap cover plate so as to form an equipotential region between the trap grid plate and the trap cover plate, and grid holes are distributed in the trap grid plate and are used for metal particles to penetrate through so as to enable the metal particles to enter the equipotential region.
The beneficial effects are that: the trap grid plate is detachably connected to the trap cover plate, so that an equipotential area is formed between the trap grid plate and the trap cover plate, after the trap cover plate is fixedly connected to a corresponding cylinder, metal particles in the cylinder can move under the action of an electric field under the action of alternating-current high voltage and finally pass through the grid holes to enter the equipotential area, so that the metal particles are not influenced by the electric field any more, the metal particles stop moving, and the metal particles are captured; moreover, the trap cover plate and the trap grid plate are both of plate-shaped structures, so that the structure of the particle trap is simplified. In addition, the trap grid plate is detachably connected to the trap cover plate, and the trap cover plate is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body, so that collected metal particles can be cleaned regularly.
Further, the trap cover plate is a concave plate, and the concave surface of the concave plate faces the trap grid plate.
The beneficial effects are that: the trap cover plate has a certain depth, so that metal particles are not easy to pop out after entering an equipotential area, and the trapping efficiency of the particle trap is ensured.
Further, the concave plate is of a spherical crown structure.
The beneficial effects are that: the metal particles impact on the arc surface of the spherical cap structure, and the motion direction of the metal particles is changed, so that the capture efficiency of the particle trap is further ensured.
Furthermore, the trap cover plate is provided with a mounting surface which is used for abutting against the opening edge of the cylindrical wall opening, and the trap grid plate is lower than the mounting surface of the trap cover plate.
The beneficial effects are that: the trap grid plate is not required to be considered, and the trap grid plate is not higher than the inner wall surface of the cylinder.
Further, the trap grid plate is a flat plate.
The beneficial effects are that: due to the design, the structure of the trap grid plate is simpler, and the processing of the trap grid plate is facilitated.
Furthermore, the trap grid plate is detachably connected to the trap cover plate through threads.
The beneficial effects are that: the trap grid plate is detachably connected to the trap cover plate through threads, so that the trap grid plate is easy and convenient to disassemble and assemble.
Furthermore, a convex part is arranged on one side, facing the trap grid plate, of the trap cover plate, a threaded hole is formed in the convex part, a through hole is formed in the trap grid plate, and the trap grid plate is detachably connected to the trap cover plate through a fastening screw thread penetrating through the through hole and connected to the threaded hole in a threaded mode.
The beneficial effects are that: due to the design, the trap grid plate can be conveniently disassembled and assembled, and the stability of the trap grid plate can be ensured.
Furthermore, an assembly gap is reserved between the trap cover plate and the trap grid plate in the radial direction of the opening.
The beneficial effects are that: by arranging the assembling gap, the trap grid plate is prevented from interfering with the trap cover plate during installation.
Further, the grid holes are long holes extending along the axial direction of the cylinder body, and the width of each long hole is 10-30 mm.
The beneficial effects are that: the slot has a width that provides a high metal particle capture efficiency.
In order to realize the purpose, the technical scheme of the cylinder structure for the GIS/GIL is as follows:
GIS/GIL uses tubular structure, including the barrel, be equipped with the opening on the section of thick bamboo wall of barrel, this opening part releasable connection has the particle trapper, the particle trapper includes:
the trap cover plate is provided with a cover plate connecting structure and is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body through the cover plate connecting structure;
the trap grid plate is detachably connected to the trap cover plate so as to form an equipotential region between the trap grid plate and the trap cover plate, and grid holes are distributed in the trap grid plate and are used for metal particles to pass through so as to enable the metal particles to enter the equipotential region;
the trap grid plate is not higher than the inner wall surface of the cylinder.
The beneficial effects are that: the trap grid plate is detachably connected to the trap cover plate, so that an equipotential area is formed between the trap grid plate and the trap cover plate, after the trap cover plate is fixedly connected to a corresponding cylinder, metal particles in the cylinder can move under the action of an electric field under the action of alternating-current high voltage and finally pass through the grid holes to enter the equipotential area, so that the metal particles are not influenced by the electric field any more, the metal particles stop moving, and the metal particles are captured; moreover, the trap cover plate and the trap grid plate are both of plate-shaped structures, so that the structure of the particle trap is simplified. In addition, the trap grid plate is detachably connected to the trap cover plate, and the trap cover plate is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body, so that collected metal particles can be cleaned regularly.
Further, the trap cover plate is a concave plate, and the concave surface of the concave plate faces the trap grid plate.
The beneficial effects are that: the trap cover plate has a certain depth, so that metal particles are not easy to pop out after entering an equipotential area, and the trapping efficiency of the particle trap is ensured.
Further, the concave plate is of a spherical crown structure.
The beneficial effects are that: the metal particles impact on the arc surface of the spherical cap structure, and the motion direction of the metal particles is changed, so that the capture efficiency of the particle trap is further ensured.
Furthermore, the trap cover plate is provided with a mounting surface which is used for abutting against the opening edge of the cylindrical wall opening, and the trap grid plate is lower than the mounting surface of the trap cover plate.
The beneficial effects are that: the trap grid plate is not required to be considered, and the trap grid plate is not higher than the inner wall surface of the cylinder.
Further, the trap grid plate is a flat plate.
The beneficial effects are that: due to the design, the structure of the trap grid plate is simpler, and the processing of the trap grid plate is facilitated.
Furthermore, the trap grid plate is detachably connected to the trap cover plate through threads.
The beneficial effects are that: the trap grid plate is detachably connected to the trap cover plate through threads, so that the trap grid plate is easy and convenient to disassemble and assemble.
Furthermore, a convex part is arranged on one side, facing the trap grid plate, of the trap cover plate, a threaded hole is formed in the convex part, a through hole is formed in the trap grid plate, and the trap grid plate is detachably connected to the trap cover plate through a fastening screw thread penetrating through the through hole and connected to the threaded hole in a threaded mode.
The beneficial effects are that: due to the design, the trap grid plate can be conveniently disassembled and assembled, and the stability of the trap grid plate can be ensured.
Furthermore, an assembly gap is reserved between the trap cover plate and the trap grid plate in the radial direction of the opening.
The beneficial effects are that: by arranging the assembling gap, the trap grid plate is prevented from interfering with the trap cover plate during installation.
Further, the grid holes are long holes extending along the axial direction of the cylinder body, and the width of each long hole is 10-30 mm.
The beneficial effects are that: the slot has a width that provides a high metal particle capture efficiency.
Drawings
FIG. 1 is a schematic diagram of a particle trap 1 according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the trap cover plate of FIG. 1;
FIG. 3 is a schematic structural diagram of the trapping grid plate of FIG. 1;
FIG. 4 is a schematic view of the particle trap of FIG. 1 applied below the fracture;
FIG. 5 is a schematic view of the particle trap of FIG. 1 applied below the connection between the conducting rod and the electrical connection;
FIG. 6 is a schematic view of the particle trap of embodiment 2 of the present invention;
FIG. 7 is a schematic view of the particle trap of FIG. 6 applied under a fracture;
FIG. 8 is a schematic diagram of a particle trap according to embodiment 3 of the present invention;
FIG. 9 is a schematic diagram of a particle trap according to embodiment 4 of the present invention;
in fig. 1 to 5: 101-a cylinder body; 102-moving contact base; 103-stationary contact seat; 104-a particle trap; 105-a conductive rod; 106-electrical coupling; 1-a trap cover plate; 2-a trap grid plate; 3-cover plate fixing holes; 4-sealing groove; 5-fastening screws; 6-a convex part; 7-a threaded hole; 8-perforating; 9-grid holes; 10-equipotential region; 11-assembly clearance;
in fig. 6 and 7: 201-cylinder body; 202-moving contact base; 203-stationary contact base; 204-a particle trap; 21-a trap cover plate; 22-a trap grid plate; 23-fixing the flanging; 24-a fastening screw;
in fig. 8: 31-a trap cover plate; 32-a trap grid plate; 33-fixing the flanging; 34-a fastening screw;
in fig. 9: 41-trap cover plate; 42-a trap grid plate; 43-fastening screws.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
as shown in fig. 1, the particle trap 104 includes a trap cover plate 1 and a trap grid plate 2, and the trap grid plate 2 is detachably connected to the trap cover plate 1 to form an equipotential region between the trap grid plate 2 and the trap cover plate 1; as shown in fig. 3, grid holes 9 are uniformly distributed on the grid plate 2 of the trap, and the metal particles pass through the grid holes 9 so as to enter an equipotential region 10, thereby capturing the metal particles.
As shown in fig. 2, a convex portion 6 is arranged on one side of the trap cover plate 1 facing the trap grid plate 2, a threaded hole 7 is arranged on the convex portion 6, an opening of the threaded hole 7 faces the trap grid plate 2, and four threaded holes 7 are uniformly distributed along the circumferential direction of the trap cover plate 1.
As shown in fig. 3, the trap grid plate 2 is a circular flat plate, the trap grid plate 2 is provided with four through holes 8, the four through holes 8 are uniformly distributed along the circumference of the trap grid plate 2, the four through holes 8 correspond to the four threaded holes 7 one by one, and the trap grid plate 2 is detachably connected to the trap cover plate 1 through fastening screws 5 which penetrate through the through holes 8 and are in threaded connection with the threaded holes 7, so that the trap grid plate 2 and the trap cover plate 1 can be conveniently disassembled and assembled.
In this embodiment, the grid holes 9 of the trap grid plate 2 are long holes extending along the axial direction of the cylinder, and the width of the long holes is 10-30mm, so that the efficiency of capturing metal particles is high. In other embodiments, the grid holes on the trap grid plate may be circular holes.
As shown in fig. 1, after the trap grid plate 2 is fixedly connected to the trap cover plate 1, an assembly gap 11 is reserved between the trap cover plate 1 and the trap grid plate 2 in the radial direction of the trap grid plate 2, and by setting the assembly gap 11, the trap grid plate 2 is prevented from interfering with the trap cover plate 1 during installation, so that the requirement on the overall size precision of the trap grid plate 2 is not high, the processing difficulty is reduced, and the processing efficiency is improved. Wherein the fitting clearance 11 ranges from 3 to 7 mm.
As shown in fig. 2, the trap cover plate 1 is a concave plate, preferably a spherical crown structure, and the concave surface of the spherical crown of the trap cover plate 1 faces the trap grid plate 2, so that the trap cover plate 1 has a certain depth, and the spherical crown structure is an arc surface, so that the metal particles impact on the arc surface, the movement direction of the metal particles is changed, the metal particles are not easy to pop out after entering the equipotential region, and the capture efficiency of the particle trap is ensured. Wherein, the trap grid plate 2 is positioned in the spherical crown concave surface of the trap cover plate 1.
In this embodiment, be equipped with apron fixed orifices 3 on the trap apron 1, the removable fixed connection of trap apron 1 through apron fixed orifices 3 and screw cooperation is on the barrel to in the dismouting of trap apron 1 on the barrel, wherein, apron fixed orifices 3 constitute apron connection structure.
In this embodiment, in order to avoid leakage of an insulating medium in the cylinder, a sealing groove 4 is formed in the trap cover plate 1, and a sealing ring is placed in the sealing groove 4, so as to ensure the sealing performance between the cylinder and the particle trap 104.
In this embodiment, the trap cover plate 1 and the trap grid plate 2 are both metal plates, preferably aluminum plates, wherein the trap cover plate 1 is formed by casting, and the trap grid plate 2 is formed by stamping.
One application of the particle trap 104 is shown in fig. 4, an opening is arranged at the bottom of the cylinder wall of the cylinder body 101, a movable contact base 102 (a movable contact is not shown) and a fixed contact base 103 are arranged inside the cylinder body 101, the movable contact base 102 and the fixed contact base 103 form a fracture, and the particle trap 104 is fixedly arranged at the opening of the cylinder body 101 through a screw and is positioned below the fracture so as to trap metal particles generated by abrasion of the movable contact. The trap grid plate 2 of the particle trap 104 is lower than the inner wall surface of the cylinder 101.
Another application of the particle catcher 104 is shown in fig. 5, an opening is arranged at the bottom of the cylinder wall of the cylinder body 101, a conductive rod 105 and an electric coupler 106 are arranged inside the cylinder body 101, one end of the conductive rod 105 is electrically connected with the electric coupler 106, and the particle catcher 104 is fixedly arranged at the opening of the cylinder body 101 through a screw and is positioned below the conductive connection part of the conductive rod 105 and the electric coupler 106 so as to catch metal particles generated by abrasion when the conductive rod 105 moves. The trap grid plate 2 of the particle trap 104 is lower than the inner wall surface of the cylinder 101.
In this embodiment, the opening on the cylinder wall is a pull opening.
The particle catcher can be flexibly arranged according to requirements, has low requirement on the structure size of a product, can be arranged right below a fracture of a circuit breaker, a fracture of an isolating switch and a fracture of an earthing switch, or right below a connecting part of a conducting rod and an electric connection of a long bus and the like, can effectively catch most of metal particles in a GIS or GIL cylinder, reduces the discharge risk of the metal particles, and avoids causing great economic loss.
the difference from the specific embodiment 1 is that in the embodiment 1, the trap grid plate 2 is a flat plate, the trap cover plate 1 is a spherical crown structure, and an equipotential region is formed between the trap grid plate 2 and the trap cover plate 1, in this embodiment, as shown in fig. 6, the particle trap 204 includes a trap cover plate 21 and a trap grid plate 22, the trap cover plate 21 is a spherical crown structure, the middle of the trap grid plate 22 protrudes upward, the edge of the trap grid plate is provided with a fixing flange 23, the trap grid plate 22 is fixedly connected to the trap cover plate 21 by matching the fixing flange 23 with a fastening screw 24, and a larger equipotential region is formed between the trap grid plate 22 and the trap cover plate 21. In other embodiments, the trap cover plate 21 may be a flat plate.
In this embodiment, as shown in fig. 7, an application of the particle trap 204 is that an opening is formed on a wall of a cylinder 201, a movable contact base 202 and a fixed contact base 203 are arranged inside the cylinder 201, the movable contact base 202 and the fixed contact base 203 form a fracture, and the particle trap 204 is fixedly installed at the opening of the cylinder 201 through a screw and is located below the fracture to trap metal particles generated by abrasion of the movable contact. The trap grid plate 22 of the particle trap 204 is lower than the inner wall surface of the cylinder 201.
the difference from the specific embodiment 1 is that in the embodiment 1, the trap grid plate 2 is a flat plate, the trap cover plate 1 is a spherical cap structure, and an equipotential region is formed between the trap grid plate 2 and the trap cover plate 1, in this embodiment, as shown in fig. 8, the middle of the trap grid plate 32 protrudes downward, the edge of the trap grid plate is provided with a fixing flange 33, the trap grid plate 32 is fixedly connected to the trap cover plate 31 through the fixing flange 33 and a fastening screw 34 in a matching manner, and a smaller equipotential region is formed between the trap grid plate 32 and the trap cover plate 31.
the difference from embodiment 1 is that in embodiment 1, the trap grid plate 2 is a flat plate, the trap cover plate 1 is a spherical cap structure, and an equipotential region is formed between the trap grid plate 2 and the trap cover plate 1, in this embodiment, as shown in fig. 9, the trap cover plate 41 is a concave plate with a large depth, the trap grid plate 42 is fixedly connected to the trap cover plate 41 by fastening screws 43, and a large equipotential region is formed between the trap grid plate 42 and the trap cover plate 41.
the difference from the specific embodiment 1 is that in the embodiment 1, the trap grid plate 2 is fixedly connected to the trap cover plate 1 through fastening screws so as to realize the fixed connection of the trap grid plate 2 and the trap cover plate 1.
the difference from the specific embodiment 1 is that in the embodiment 1, a convex portion is arranged on the trap cover plate 1, a threaded hole 7 is arranged on the convex portion, a through hole 8 is arranged on the trap grid plate 2, the trap grid plate 2 is detachably connected to the trap cover plate 1 through a fastening screw 5 which penetrates through the through hole 8 and is in threaded connection with the threaded hole 7, in this embodiment, the convex portion is not arranged on the trap cover plate, a threaded hole is arranged on the upper side face of the convex portion, the convex portion is arranged on the lower side face of the trap cover plate in a protruding mode, the convex portion is provided with a through hole extending in the up-down direction, and the trap grid plate is detachably connected to the trap cover plate through the fastening screw which penetrates through the through hole and is in threaded connection with the threaded hole.
In other embodiments, no convex part is arranged on the trap cover plate, a stud and a limiting step are arranged on the upper side of the trap cover plate, the trap grid plate is placed on the limiting step, a through hole in the trap grid plate penetrates through the corresponding stud, and then a nut is screwed on the stud to detachably connect the trap grid plate on the trap cover plate.
In the embodiment of the GIS/GIL cylinder structure according to the present invention, the GIS/GIL cylinder structure includes a cylinder, an opening is formed in the cylinder, and a particle trap is detachably connected to the opening, and the particle trap is the same as any one of the embodiments 1 to 6 of the particle trap described above, and thus, the description thereof is omitted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (6)
1. A particle trap, comprising:
the trap cover plate is provided with a cover plate connecting structure and is detachably and fixedly connected to the opening of the cylinder wall of the cylinder body through the cover plate connecting structure;
the trap grid plate is detachably connected to the trap cover plate so as to form an equipotential region between the trap grid plate and the trap cover plate, and grid holes are distributed in the trap grid plate and are used for metal particles to pass through so as to enable the metal particles to enter the equipotential region;
the trap cover plate is a concave plate and is provided with a concave surface and a mounting surface, and the concave surface of the concave plate faces the trap grid plate;
the mounting surface is used for abutting against the opening edge of the cylindrical wall opening, and the trap grid plate is lower than the mounting surface of the trap cover plate;
the trap grid plate is detachably connected to the trap cover plate through threads;
the trap grid plate is characterized in that a convex part is arranged on one side, facing the trap grid plate, of the trap cover plate, the convex part is located in a concave surface of the trap cover plate and does not exceed a mounting surface, a threaded hole is formed in the convex part, a through hole is formed in the trap grid plate, and the trap grid plate is detachably connected to the trap cover plate through a fastening screw which penetrates through the through hole and is in threaded connection with the threaded hole in a threaded manner.
2. The particle trap of claim 1, wherein the concave plate is of spherical cap construction.
3. The particle trap of claim 1 or claim 2, wherein the trap grid plate is a flat plate.
4. The particle trap of claim 1 or 2, wherein the trap cover plate and the trap grid plate are provided with a fitting gap in a radial direction of the opening.
5. The particle trap according to claim 1 or 2, wherein the grid holes are long holes extending in the axial direction of the cylinder, the long holes having a width of 10-30 mm.
The cylinder structure for GIS/GIL comprises a cylinder, and is characterized in that an opening is formed in the cylinder wall of the cylinder, a particle trap is detachably connected to the opening, the particle trap is the particle trap in any one of claims 1-5, and the trap grid plate is not higher than the inner wall surface of the cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575321.XA CN111957674B (en) | 2020-06-22 | 2020-06-22 | Particle catcher and GIS/cylinder structure for GIL |
| PCT/CN2020/135931 WO2021258665A1 (en) | 2020-06-22 | 2020-12-11 | Particulate filter and cylinder body structure for gis/gil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575321.XA CN111957674B (en) | 2020-06-22 | 2020-06-22 | Particle catcher and GIS/cylinder structure for GIL |
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| Publication Number | Publication Date |
|---|---|
| CN111957674A CN111957674A (en) | 2020-11-20 |
| CN111957674B true CN111957674B (en) | 2022-02-25 |
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| WO (1) | WO2021258665A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111957674B (en) * | 2020-06-22 | 2022-02-25 | 平高集团有限公司 | Particle catcher and GIS/cylinder structure for GIL |
| CN112844842A (en) * | 2020-12-11 | 2021-05-28 | 河南平高电气股份有限公司 | Particle capture device and GIS/GIL cylinder structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2021258665A1 (en) | 2021-12-30 |
| CN111957674A (en) | 2020-11-20 |
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